Region
United States --
9
United States
5
Great Britain
4
Great Britain --
4
Japan --
3
Afghanistan --
2
Cambodia --
2
Europe
2
Europe --
2
Indonesia
2
Indonesia --
2
Panama --
2
Singapore
2
Singapore --
2
Afghanistan
1
Albania
1
Albania --
1
Australia
1
Australia --
1
Austria
1
Austria --
1
Cambodia
1
Cameroon
1
Cameroon --
1
China
1
China --
1
Developing countries
1
Developing countries --
1
Egypt --
1
France
1
France --
1
Indochina
1
Indochina --
1
Iran --
1
Iraq --
1
Japan
1
Libya
1
Libya --
1
Malaysia
1
Malaysia --
1
Pakistan
1
Pakistan --
1
Palau
1
Palau --
1
Panama
1
Saudi Arabia --
1
Southeast Asia
1
Soviet Union
1
Soviet Union --
1
Timor Timur
1
more ...